The Bank of England has begun the massive task of destroying £40bn-worth of paper banknotes, which will be replaced by new polymer £20 notes.
Around two billion paper notes will be withdrawn and composted to be used as a soil improver for agriculture.
“It’s an enormous operation the general public will barely notice,” said Mark Saunders of G4S, which handles two-thirds of Britain’s banknotes.
The replacement of the two billion notes will be the biggest cash replacement in UK history.





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